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26 files changed, 1683 insertions, 0 deletions
diff --git a/nptl/sysdeps/powerpc/Makefile b/nptl/sysdeps/powerpc/Makefile new file mode 100644 index 0000000..3af2456 --- /dev/null +++ b/nptl/sysdeps/powerpc/Makefile @@ -0,0 +1,21 @@ +# Copyright (C) 2003 Free Software Foundation, Inc. +# This file is part of the GNU C Library. + +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. + +# The GNU C Library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. + +# You should have received a copy of the GNU Lesser General Public +# License along with the GNU C Library; if not, write to the Free +# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +# 02111-1307 USA. + +ifeq ($(subdir),csu) +gen-as-const-headers += tcb-offsets.sym +endif diff --git a/nptl/sysdeps/powerpc/bits/atomic.h b/nptl/sysdeps/powerpc/bits/atomic.h new file mode 100644 index 0000000..af61563 --- /dev/null +++ b/nptl/sysdeps/powerpc/bits/atomic.h @@ -0,0 +1,116 @@ +/* Atomic operations. PowerPC version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <stdint.h> + +typedef int8_t atomic8_t; +typedef uint8_t uatomic8_t; +typedef int_fast8_t atomic_fast8_t; +typedef uint_fast8_t uatomic_fast8_t; + +typedef int16_t atomic16_t; +typedef uint16_t uatomic16_t; +typedef int_fast16_t atomic_fast16_t; +typedef uint_fast16_t uatomic_fast16_t; + +typedef int32_t atomic32_t; +typedef uint32_t uatomic32_t; +typedef int_fast32_t atomic_fast32_t; +typedef uint_fast32_t uatomic_fast32_t; + +typedef int64_t atomic64_t; +typedef uint64_t uatomic64_t; +typedef int_fast64_t atomic_fast64_t; +typedef uint_fast64_t uatomic_fast64_t; + +typedef intptr_t atomicptr_t; +typedef uintptr_t uatomicptr_t; +typedef intmax_t atomic_max_t; +typedef uintmax_t uatomic_max_t; + + +#define __arch_compare_and_exchange_8_acq(mem, newval, oldval) \ + (abort (), 0) + +#define __arch_compare_and_exchange_16_acq(mem, newval, oldval) \ + (abort (), 0) + +#ifdef UP +#define __ARCH_ACQ_INSTR "" +#define __ARCH_REL_INSTR "" +#else +#define __ARCH_ACQ_INSTR "isync" +#define __ARCH_REL_INSTR "sync" +#endif + +/* + * XXX At present these have both acquire and release semantics. + * Ultimately we should do separate _acq and _rel versions. + */ + +/* + * XXX this may not work properly on 64-bit if the register + * containing oldval has the high half non-zero for some reason. + */ +#define __arch_compare_and_exchange_32_acq(mem, newval, oldval) \ +({ \ + unsigned int __tmp; \ + __asm __volatile (__ARCH_REL_INSTR "\n" \ + "1: lwarx %0,0,%1\n" \ + " subf. %0,%2,%0\n" \ + " bne 2f\n" \ + " stwcx. %3,0,%1\n" \ + " bne- 1b\n" \ + "2: " __ARCH_ACQ_INSTR \ + : "=&r" (__tmp) \ + : "r" (mem), "r" (oldval), "r" (newval) \ + : "cr0", "memory"); \ + __tmp != 0; \ +}) + +#ifdef __powerpc64__ +#define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \ +({ \ + unsigned long __tmp; \ + __asm __volatile (__ARCH_REL_INSTR "\n" \ + "1: ldarx %0,0,%1\n" \ + " subf. %0,%2,%0\n" \ + " bne 2f\n" \ + " stdcx. %3,0,%1\n" \ + " bne- 1b\n" \ + "2: " __ARCH_ACQ_INSTR \ + : "=&r" (__tmp) \ + : "r" (mem), "r" (oldval), "r" (newval) \ + : "cr0", "memory"); \ + __tmp != 0; \ +}) + +#else /* powerpc32 */ +#define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \ + (abort (), 0) +#endif + +#define atomic_full_barrier() __asm ("sync" ::: "memory") +#ifdef __powerpc64__ +#define atomic_read_barrier() __asm ("lwsync" ::: "memory") +#else +#define atomic_read_barrier() __asm ("sync" ::: "memory") +#endif +#define atomic_write_barrier() __asm ("eieio" ::: "memory") diff --git a/nptl/sysdeps/powerpc/pthread_spin_lock.c b/nptl/sysdeps/powerpc/pthread_spin_lock.c new file mode 100644 index 0000000..e2293fd --- /dev/null +++ b/nptl/sysdeps/powerpc/pthread_spin_lock.c @@ -0,0 +1,45 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "pthreadP.h" + +int +pthread_spin_lock (lock) + pthread_spinlock_t *lock; +{ + unsigned int __tmp; + + asm volatile ( + "1: lwarx %0,0,%1\n" + " cmpwi 0,%0,0\n" + " bne- 2f\n" + " stwcx. %2,0,%1\n" + " bne- 2f\n" + " isync\n" + " .subsection 1\n" + "2: lwzx %0,0,%1\n" + " cmpwi 0,%0,0\n" + " bne 2b\n" + " b 1b\n" + " .previous" + : "=&r" (__tmp) + : "r" (lock), "r" (1) + : "cr0", "memory"); + return 0; +} diff --git a/nptl/sysdeps/powerpc/pthread_spin_trylock.c b/nptl/sysdeps/powerpc/pthread_spin_trylock.c new file mode 100644 index 0000000..d8e1dbc --- /dev/null +++ b/nptl/sysdeps/powerpc/pthread_spin_trylock.c @@ -0,0 +1,43 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include "pthreadP.h" + +int +pthread_spin_trylock (lock) + pthread_spinlock_t *lock; +{ + unsigned int old; + int err = EBUSY; + + asm ("1: lwarx %0,0,%2\n" + " cmpwi 0,%0,0\n" + " bne 2f\n" + " stwcx. %3,0,%2\n" + " bne- 1b\n" + " li %1,0\n" + " isync\n" + "2: " + : "=&r" (old), "=&r" (err) + : "r" (lock), "r" (1), "1" (err) + : "cr0", "memory"); + + return err; +} diff --git a/nptl/sysdeps/powerpc/pthreaddef.h b/nptl/sysdeps/powerpc/pthreaddef.h new file mode 100644 index 0000000..b28d0be --- /dev/null +++ b/nptl/sysdeps/powerpc/pthreaddef.h @@ -0,0 +1,44 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* Default stack size. */ +#define ARCH_STACK_DEFAULT_SIZE (4 * 1024 * 1024) + +/* Required stack pointer alignment at beginning. The ABI requires 16 + bytes (for both 32-bit and 64-bit PowerPC). */ +#define STACK_ALIGN 16 + +/* Minimal stack size after allocating thread descriptor and guard size. */ +#define MINIMAL_REST_STACK 4096 + +/* Alignment requirement for TCB. */ +#define TCB_ALIGNMENT 16 + +/* The signal used for asynchronous cancelation. */ +#define SIGCANCEL __SIGRTMIN + + +/* Location of current stack frame. */ +#define CURRENT_STACK_FRAME __builtin_frame_address (0) + + +/* XXX Until we have a better place keep the definitions here. */ + +/* While there is no such syscall. */ +#define __exit_thread_inline(val) \ + INLINE_SYSCALL (exit, 1, (val)) diff --git a/nptl/sysdeps/powerpc/tcb-offsets.sym b/nptl/sysdeps/powerpc/tcb-offsets.sym new file mode 100644 index 0000000..d6b7560 --- /dev/null +++ b/nptl/sysdeps/powerpc/tcb-offsets.sym @@ -0,0 +1,13 @@ +#include <sysdep.h> +#include <tls.h> + +-- + +-- Abuse tls.h macros to derive offsets relative to the thread register. +# undef __thread_register +# define __thread_register ((void *) 0) +# define thread_offsetof(mem) ((void *) &THREAD_SELF->mem - (void *) 0) + +#if TLS_MULTIPLE_THREADS_IN_TCB +MULTIPLE_THREADS_OFFSET thread_offsetof (header.multiple_threads) +#endif diff --git a/nptl/sysdeps/powerpc/td_ta_map_lwp2thr.c b/nptl/sysdeps/powerpc/td_ta_map_lwp2thr.c new file mode 100644 index 0000000..d1a9368 --- /dev/null +++ b/nptl/sysdeps/powerpc/td_ta_map_lwp2thr.c @@ -0,0 +1,44 @@ +/* Which thread is running on an LWP? PowerPC version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "thread_dbP.h" +#include <tls.h> + + +td_err_e +td_ta_map_lwp2thr (const td_thragent_t *ta, lwpid_t lwpid, td_thrhandle_t *th) +{ + LOG ("td_ta_map_lwp2thr"); + + /* Test whether the TA parameter is ok. */ + if (! ta_ok (ta)) + return TD_BADTA; + + prgregset_t regs; + if (ps_lgetregs (ta->ph, lwpid, regs) != PS_OK) + return TD_ERR; + + th->th_unique = ((void *) regs[PT_THREAD_POINTER] + - TLS_TCB_OFFSET - TLS_TCB_SIZE - TLS_PRE_TCB_SIZE); + + /* Found it. Now complete the `td_thrhandle_t' object. */ + th->th_ta_p = (td_thragent_t *) ta; + + return TD_OK; +} diff --git a/nptl/sysdeps/powerpc/tls.h b/nptl/sysdeps/powerpc/tls.h new file mode 100644 index 0000000..04d76a6 --- /dev/null +++ b/nptl/sysdeps/powerpc/tls.h @@ -0,0 +1,152 @@ +/* Definition for thread-local data handling. NPTL/PowerPC version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _TLS_H +#define _TLS_H 1 + +# include <dl-sysdep.h> + +#ifndef __ASSEMBLER__ +# include <stddef.h> +# include <stdint.h> + +/* Type for the dtv. */ +typedef union dtv +{ + size_t counter; + void *pointer; +} dtv_t; + +#else /* __ASSEMBLER__ */ +# include <tcb-offsets.h> +#endif /* __ASSEMBLER__ */ + + +/* We require TLS support in the tools. */ +#ifndef HAVE_TLS_SUPPORT +# error "TLS support is required." +#endif + +/* Signal that TLS support is available. */ +# define USE_TLS 1 + +#ifndef __ASSEMBLER__ + +/* Get system call information. */ +# include <sysdep.h> + +/* The TP points to the start of the thread blocks. */ +# define TLS_DTV_AT_TP 1 + +/* For 32-bit, we use the multiple_threads field in the pthread struct */ +#ifndef __powerpc64__ +# define TLS_MULTIPLE_THREADS_IN_TCB 1 +#endif + +/* Get the thread descriptor definition. */ +# include <nptl/descr.h> + +/* This layout is actually wholly private and not affected by the ABI. + Nor does it overlap the pthread data structure, so we need nothing + extra here at all. */ +typedef struct +{ + dtv_t *dtv; +} tcbhead_t; + +/* This is the size of the initial TCB. */ +# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) + +/* Alignment requirements for the initial TCB. */ +# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t) + +/* This is the size of the TCB. */ +# define TLS_TCB_SIZE sizeof (tcbhead_t) + +/* Alignment requirements for the TCB. */ +# define TLS_TCB_ALIGN __alignof__ (tcbhead_t) + +/* This is the size we need before TCB. */ +# define TLS_PRE_TCB_SIZE sizeof (struct pthread) + +/* XXX if __alignof__ (struct pthread) > __alignof (tcbhead_t) + we could be in trouble. -- paulus */ + +# ifndef __powerpc64__ +/* Register r2 (tp) is reserved by the ABI as "thread pointer". */ +register void *__thread_register __asm__ ("r2"); +# define PT_THREAD_POINTER PT_R2 +# else +/* Register r13 (tp) is reserved by the ABI as "thread pointer". */ +register void *__thread_register __asm__ ("r13"); +# define PT_THREAD_POINTER PT_R13 +# endif + +/* The following assumes that TP (R2 or R13) points to the end of the + TCB + 0x7000 (per the ABI). This implies that TCB address is + TP-(TLS_TCB_SIZE + 0x7000). As we define TLS_DTV_AT_TP we can + assume that the pthread struct is allocated immediately ahead of the + TCB. This implies that the pthread_descr address is + TP-(TLS_PRE_TCB_SIZE + TLS_TCB_SIZE + 0x7000). */ +# define TLS_TCB_OFFSET 0x7000 + +/* Install the dtv pointer. The pointer passed is to the element with + index -1 which contain the length. */ +# define INSTALL_DTV(tcbp, dtvp) \ + ((tcbhead_t *) (tcbp))->dtv = dtvp + 1 + +/* Install new dtv for current thread. */ +# define INSTALL_NEW_DTV(dtv) (THREAD_DTV() = (dtv)) + +/* Return dtv of given thread descriptor. */ +# define GET_DTV(tcbp) (((tcbhead_t *) (tcbp))->dtv) + +/* Code to initially initialize the thread pointer. This might need + special attention since 'errno' is not yet available and if the + operation can cause a failure 'errno' must not be touched. */ +# define TLS_INIT_TP(tcbp, secondcall) \ + (__thread_register = (void *) (tcbp) + TLS_TCB_OFFSET + TLS_TCB_SIZE, NULL) + +/* Return the address of the dtv for the current thread. */ +# define THREAD_DTV() \ + (((tcbhead_t *) (__thread_register - TLS_TCB_OFFSET - TLS_TCB_SIZE))->dtv) + +/* Return the thread descriptor for the current thread. */ +# define THREAD_SELF \ + ((struct pthread *) (__thread_register \ + - TLS_TCB_OFFSET - TLS_TCB_SIZE - TLS_PRE_TCB_SIZE)) + +/* Read member of the thread descriptor directly. */ +# define THREAD_GETMEM(descr, member) ((void)(descr), (THREAD_SELF)->member) + +/* Same as THREAD_GETMEM, but the member offset can be non-constant. */ +# define THREAD_GETMEM_NC(descr, member, idx) \ + ((void)(descr), (THREAD_SELF)->member[idx]) + +/* Set member of the thread descriptor directly. */ +# define THREAD_SETMEM(descr, member, value) \ + ((void)(descr), (THREAD_SELF)->member = (value)) + +/* Same as THREAD_SETMEM, but the member offset can be non-constant. */ +# define THREAD_SETMEM_NC(descr, member, idx, value) \ + ((void)(descr), (THREAD_SELF)->member[idx] = (value)) + +#endif /* __ASSEMBLER__ */ + +#endif /* tls.h */ diff --git a/nptl/sysdeps/pthread/pthread_spin_init.c b/nptl/sysdeps/pthread/pthread_spin_init.c new file mode 100644 index 0000000..c227508 --- /dev/null +++ b/nptl/sysdeps/pthread/pthread_spin_init.c @@ -0,0 +1,28 @@ +/* pthread_spin_init -- initialize a spin lock. Generic version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "pthreadP.h" + +int +pthread_spin_init (pthread_spinlock_t *lock, int pshared) +{ + *lock = 0; + return 0; +} diff --git a/nptl/sysdeps/pthread/pthread_spin_unlock.c b/nptl/sysdeps/pthread/pthread_spin_unlock.c new file mode 100644 index 0000000..f97cadf --- /dev/null +++ b/nptl/sysdeps/pthread/pthread_spin_unlock.c @@ -0,0 +1,30 @@ +/* pthread_spin_unlock -- unlock a spin lock. Generic version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "pthreadP.h" +#include <atomic.h> + +int +pthread_spin_unlock (pthread_spinlock_t *lock) +{ + atomic_full_barrier (); + *lock = 0; + return 0; +} diff --git a/nptl/sysdeps/unix/sysv/linux/libc-lowlevellock.c b/nptl/sysdeps/unix/sysv/linux/libc-lowlevellock.c new file mode 100644 index 0000000..b192822 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/libc-lowlevellock.c @@ -0,0 +1,21 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* No difference to lowlevellock.c, except we lose a couple of functions. */ +#include "lowlevellock.c" diff --git a/nptl/sysdeps/unix/sysv/linux/libc-lowlevelmutex.c b/nptl/sysdeps/unix/sysv/linux/libc-lowlevelmutex.c new file mode 100644 index 0000000..7c594e3 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/libc-lowlevelmutex.c @@ -0,0 +1 @@ +/* Nothing needed here in fact. */ diff --git a/nptl/sysdeps/unix/sysv/linux/lowlevellock.c b/nptl/sysdeps/unix/sysv/linux/lowlevellock.c new file mode 100644 index 0000000..b80e153 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/lowlevellock.c @@ -0,0 +1,140 @@ +/* low level locking for pthread library. Generic futex-using version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <sysdep.h> +#include <lowlevellock.h> +#include <sys/time.h> + + +void +__lll_lock_wait (int *futex, int val) +{ + do { + lll_futex_wait (futex, val+1); + } while ((val = __lll_add (futex, 1)) != 0); + *futex = 2; +} +hidden_proto (__lll_lock_wait) + + +int +__lll_timedlock_wait (int *futex, int val, const struct timespec *abstime) +{ + int err; + + /* Reject invalid timeouts. */ + if (abstime->tv_nsec >= 1000000000) + return EINVAL; + + do + { + struct timeval tv; + struct timespec rt; + int sec, nsec; + + /* Get the current time. */ + __gettimeofday (&tv, NULL); + + /* Compute relative timeout. */ + sec = abstime->tv_sec - tv.tv_sec; + nsec = abstime->tv_nsec - tv.tv_usec * 1000; + if (nsec < 0) + { + nsec += 1000000000; + --sec; + } + + /* Already timed out? */ + err = -ETIMEDOUT; + if (sec < 0) + break; + + /* Wait. */ + rt.tv_sec = sec; + rt.tv_nsec = nsec; + err = lll_futex_timed_wait (futex, val+1, &rt); + } while (err == 0 && (val = __lll_add (futex, 1)) != 0); + + *futex = 2; + return -err; +} +hidden_proto (__lll_timedlock_wait) + + +/* These don't get included in libc.so */ +#ifdef IS_IN_libpthread +int +lll_unlock_wake_cb (int *futex) +{ + __lll_add (futex, 1); + return 0; +} +hidden_proto (lll_unlock_wake_cb) + + +int +__lll_timedwait_tid (int *tidp, const struct timespec *abstime) +{ + int tid; + int err = 0; + + if (abstime == NULL || abstime->tv_nsec >= 1000000000) + return EINVAL; + + /* Repeat until thread terminated. */ + while ((tid = *tidp) != 0) + { + struct timeval tv; + struct timespec rt; + int sec, nsec; + + /* Get the current time. */ + __gettimeofday (&tv, NULL); + + /* Compute relative timeout. */ + sec = abstime->tv_sec - tv.tv_sec; + nsec = abstime->tv_nsec - tv.tv_usec * 1000; + if (nsec < 0) + { + nsec += 1000000000; + --sec; + } + + /* Already timed out? */ + err = -ETIMEDOUT; + if (sec < 0) + break; + + /* Wait. */ + rt.tv_sec = sec; + rt.tv_nsec = nsec; + + /* Wait until thread terminates. */ + err = lll_futex_timed_wait (tidp, tid, &rt); + if (err != 0) + break; + } + + return -err; +} + +hidden_proto (__lll_timedwait_tid) +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile b/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile new file mode 100644 index 0000000..e98c9bd --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile @@ -0,0 +1,2 @@ +# pull in __syscall_error routine +libpthread-routines += sysdep diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h b/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h new file mode 100644 index 0000000..332f50f --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h @@ -0,0 +1,167 @@ +/* Machine-specific pthread type layouts. PowerPC version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _BITS_PTHREADTYPES_H +#define _BITS_PTHREADTYPES_H 1 + +#include <bits/wordsize.h> + +#if __WORDSIZE == 64 +# define __SIZEOF_PTHREAD_ATTR_T 56 +# define __SIZEOF_PTHREAD_MUTEX_T 40 +# define __SIZEOF_PTHREAD_MUTEXATTR_T 4 +# define __SIZEOF_PTHREAD_COND_T 48 +# define __SIZEOF_PTHREAD_CONDATTR_T 4 +# define __SIZEOF_PTHREAD_RWLOCK_T 56 +# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8 +# define __SIZEOF_PTHREAD_BARRIER_T 32 +# define __SIZEOF_PTHREAD_BARRIERATTR_T 4 +#else +# define __SIZEOF_PTHREAD_ATTR_T 36 +# define __SIZEOF_PTHREAD_MUTEX_T 24 +# define __SIZEOF_PTHREAD_MUTEXATTR_T 4 +# define __SIZEOF_PTHREAD_COND_T 48 +# define __SIZEOF_PTHREAD_CONDATTR_T 4 +# define __SIZEOF_PTHREAD_RWLOCK_T 32 +# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8 +# define __SIZEOF_PTHREAD_BARRIER_T 20 +# define __SIZEOF_PTHREAD_BARRIERATTR_T 4 +#endif + + +/* Thread identifiers. The structure of the attribute type is + deliberately not exposed. */ +typedef struct __opaque_pthread *pthread_t; + + +typedef union +{ + char __size[__SIZEOF_PTHREAD_ATTR_T]; + long int __align; +} pthread_attr_t; + + +/* Data structures for mutex handling. The structure of the attribute + type is deliberately not exposed. */ +typedef union +{ + struct + { + int __lock; + unsigned int __count; + struct pthread *__owner; + /* KIND must stay at this position in the structure to maintain + binary compatibility. */ + int __kind; + } __data; + char __size[__SIZEOF_PTHREAD_MUTEX_T]; + long int __align; +} pthread_mutex_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_MUTEXATTR_T]; + long int __align; +} pthread_mutexattr_t; + + +/* Data structure for conditional variable handling. The structure of + the attribute type is deliberately not exposed. */ +typedef union +{ + struct + { + int __lock; + int __pad; + unsigned long long int __total_seq; + unsigned long long int __wakeup_seq; + unsigned long long int __woken_seq; + } __data; + char __size[__SIZEOF_PTHREAD_COND_T]; + long int __align; +} pthread_cond_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_CONDATTR_T]; + long int __align; +} pthread_condattr_t; + + +/* Keys for thread-specific data */ +typedef unsigned int pthread_key_t; + + +/* Once-only execution */ +typedef int pthread_once_t; + + +#ifdef __USE_UNIX98 +/* Data structure for read-write lock variable handling. The + structure of the attribute type is deliberately not exposed. */ +typedef union +{ + struct + { + int __lock; + unsigned int __nr_readers; + unsigned int __readers_wakeup; + unsigned int __writer_wakeup; + unsigned int __nr_readers_queued; + unsigned int __nr_writers_queued; + pthread_t __writer; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned int __flags; + } __data; + char __size[__SIZEOF_PTHREAD_RWLOCK_T]; + long int __align; +} pthread_rwlock_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T]; + long int __align; +} pthread_rwlockattr_t; +#endif + + +#ifdef __USE_XOPEN2K +/* POSIX spinlock data type. */ +typedef volatile int pthread_spinlock_t; + + +/* POSIX barriers data type. The structure of the type is + deliberately not exposed. */ +typedef union +{ + char __size[__SIZEOF_PTHREAD_BARRIER_T]; + long int __align; +} pthread_barrier_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_BARRIERATTR_T]; + int __align; +} pthread_barrierattr_t; +#endif + + +#endif /* bits/pthreadtypes.h */ diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h b/nptl/sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h new file mode 100644 index 0000000..02100d1 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h @@ -0,0 +1,44 @@ +/* Machine-specific POSIX semaphore type layouts. PowerPC version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SEMAPHORE_H +# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead." +#endif + +#include <bits/wordsize.h> + +#if __WORDSIZE == 64 +# define __SIZEOF_SEM_T 32 +#else +# define __SIZEOF_SEM_T 16 +#endif + +/* Value returned if `sem_open' failed. */ +#define SEM_FAILED ((sem_t *) 0) + +/* Maximum value the semaphore can have. */ +#define SEM_VALUE_MAX ((int) ((~0u) >> 1)) + + +typedef union +{ + char __size[__SIZEOF_SEM_T]; + long int __align; +} sem_t; diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/createthread.c b/nptl/sysdeps/unix/sysv/linux/powerpc/createthread.c new file mode 100644 index 0000000..bcbcdd7 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/createthread.c @@ -0,0 +1,25 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* Value passed to 'clone' for initialization of the thread register. */ +#define TLS_VALUE ((void *) (pd) \ + + TLS_TCB_OFFSET + TLS_TCB_SIZE + TLS_PRE_TCB_SIZE) + +/* Get the real implementation. */ +#include <nptl/sysdeps/pthread/createthread.c> diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/fork.c b/nptl/sysdeps/unix/sysv/linux/powerpc/fork.c new file mode 100644 index 0000000..06b7e1c --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/fork.c @@ -0,0 +1 @@ +#include "../i386/fork.c" diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h new file mode 100644 index 0000000..3295b63 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h @@ -0,0 +1,224 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Libr \ary; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _LOWLEVELLOCK_H +#define _LOWLEVELLOCK_H 1 + +#include <time.h> +#include <sys/param.h> +#include <bits/pthreadtypes.h> + +#define __NR_futex 221 +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 + +/* Initializer for compatibility lock. */ +#define LLL_MUTEX_LOCK_INITIALIZER (0) + +#define lll_futex_wait(futexp, val) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + \ + __ret = INTERNAL_SYSCALL (futex, __err, 4, \ + (futexp), FUTEX_WAIT, (val), 0); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \ + }) + +#define lll_futex_timed_wait(futexp, val, timespec) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + \ + __ret = INTERNAL_SYSCALL (futex, __err, 4, \ + (futexp), FUTEX_WAIT, (val), (timespec)); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \ + }) + +#define lll_futex_wake(futexp, nr) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + \ + __ret = INTERNAL_SYSCALL (futex, __err, 4, \ + (futexp), FUTEX_WAKE, (nr), 0); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \ + }) + +#ifdef UP +#define __lll_acq_instr "" +#define __lll_rel_instr "" +#else +#define __lll_acq_instr "isync" +#define __lll_rel_instr "sync" +#endif + +/* Set *futex to 1 if it is 0, atomically. Returns the old value */ +#define __lll_trylock(futex) \ + ({ int __val; \ + __asm __volatile ("1: lwarx %0,0,%2\n" \ + " cmpwi 0,%0,0\n" \ + " bne 2f\n" \ + " stwcx. %3,0,%2\n" \ + " bne- 1b\n" \ + "2: " __lll_acq_instr \ + : "=&r" (__val), "=m" (*futex) \ + : "r" (futex), "r" (1), "1" (*futex) \ + : "cr0", "memory"); \ + __val; \ + }) + +#define lll_mutex_trylock(lock) __lll_trylock(&(lock)) + +/* Add inc to *futex atomically and return the old value. */ +#define __lll_add(futex, inc) \ + ({ int __val, __tmp; \ + __asm __volatile ("1: lwarx %0,0,%3\n" \ + " addi %1,%0,%4\n" \ + " stwcx. %1,0,%3\n" \ + " bne- 1b" \ + : "=&b" (__val), "=&r" (__tmp), "=m" (*futex) \ + : "r" (futex), "I" (inc), "2" (*futex) \ + : "cr0"); \ + __val; \ + }) + +extern void __lll_lock_wait (int *futex, int val) attribute_hidden; + +#define lll_mutex_lock(lock) \ + (void) ({ \ + int *__futex = &(lock); \ + int __val = __lll_add (__futex, 1); \ + __asm __volatile (__lll_acq_instr ::: "memory"); \ + if (__builtin_expect (__val != 0, 0)) \ + __lll_lock_wait (__futex, __val); \ + }) + +extern int __lll_timedlock_wait + (int *futex, int val, const struct timespec *) attribute_hidden; + +#define lll_mutex_timedlock(lock, abstime) \ + ({ int *__futex = &(lock); \ + int __val = __lll_add (__futex, 1); \ + __asm __volatile (__lll_acq_instr ::: "memory"); \ + if (__builtin_expect (__val != 0, 0)) \ + __val = __lll_timedlock_wait (__futex, __val, (abstime)); \ + __val; \ + }) + +#define lll_mutex_unlock(lock) \ + (void) ({ \ + int *__futex = &(lock); \ + __asm __volatile (__lll_rel_instr ::: "memory"); \ + int __val = __lll_add (__futex, -1); \ + if (__builtin_expect (__val != 1, 0)) \ + { \ + *__futex = 0; \ + lll_futex_wake (__futex, 1); \ + } \ + }) + +#define lll_mutex_islocked(futex) \ + (futex != 0) + + +/* Our internal lock implementation is identical to the binary-compatible + mutex implementation. */ + +/* Type for lock object. */ +typedef int lll_lock_t; + +/* Initializers for lock. */ +#define LLL_LOCK_INITIALIZER (0) +#define LLL_LOCK_INITIALIZER_LOCKED (1) + +extern int lll_unlock_wake_cb (int *__futex) attribute_hidden; + +/* The states of a lock are: + 0 - untaken + 1 - taken by one user + >1 - taken by more users */ + +#define lll_trylock(lock) lll_mutex_trylock (lock) +#define lll_lock(lock) lll_mutex_lock (lock) +#define lll_unlock(lock) lll_mutex_unlock (lock) +#define lll_islocked(lock) lll_mutex_islocked (lock) + +/* The kernel notifies a process which uses CLONE_CLEARTID via futex + wakeup when the clone terminates. The memory location contains the + thread ID while the clone is running and is reset to zero + afterwards. */ +#define lll_wait_tid(tid) \ + do { \ + __typeof (tid) __tid; \ + while ((__tid = (tid)) != 0) \ + lll_futex_wait (&(tid), __tid); \ + } while (0) + +extern int __lll_timedwait_tid (int *, const struct timespec *) + attribute_hidden; + +#define lll_timedwait_tid(tid, abstime) \ + ({ \ + int __res = 0; \ + if ((tid) != 0) \ + __res = __lll_timedwait_tid (&(tid), (abstime)); \ + __res; \ + }) + + +/* Decrement *futex if it is > 0, and return the old value */ +#define __lll_dec_if_positive(futex) \ + ({ int __val, __tmp; \ + __asm __volatile ("1: lwarx %0,0,%3\n" \ + " cmpwi 0,%0,0\n" \ + " addi %1,%0,-1\n" \ + " ble 2f\n" \ + " stwcx. %1,0,%3\n" \ + " bne- 1b\n" \ + "2: " __lll_acq_instr \ + : "=&b" (__val), "=&r" (__tmp), "=m" (*futex) \ + : "r" (futex), "2" (*futex) \ + : "cr0"); \ + __val; \ + }) + + +/* Conditional variable handling. */ + +extern void __lll_cond_wait (pthread_cond_t *cond) + attribute_hidden; +extern int __lll_cond_timedwait (pthread_cond_t *cond, + const struct timespec *abstime) + attribute_hidden; +extern void __lll_cond_wake (pthread_cond_t *cond) + attribute_hidden; +extern void __lll_cond_broadcast (pthread_cond_t *cond) + attribute_hidden; + +#define lll_cond_wait(cond) \ + __lll_cond_wait (cond) +#define lll_cond_timedwait(cond, abstime) \ + __lll_cond_timedwait (cond, abstime) +#define lll_cond_wake(cond) \ + __lll_cond_wake (cond) +#define lll_cond_broadcast(cond) \ + __lll_cond_broadcast (cond) + +#endif /* lowlevellock.h */ diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h new file mode 100644 index 0000000..d256f8d --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h @@ -0,0 +1,102 @@ +/* Cancellable system call stubs. Linux/PowerPC version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <tls.h> +#ifndef __ASSEMBLER__ +# include <nptl/pthreadP.h> +#endif + +#if !defined NOT_IN_libc || defined IS_IN_libpthread + +# undef PSEUDO +# define PSEUDO(name, syscall_name, args) \ + .section ".text"; \ + ENTRY (name) \ + SINGLE_THREAD_P; \ + bne- .Lpseudo_cancel; \ + DO_CALL (SYS_ify (syscall_name)); \ + PSEUDO_RET; \ + .Lpseudo_cancel: \ + stwu 1,-48(1); \ + mflr 9; \ + stw 9,52(1); \ + DOCARGS_##args; /* save syscall args around CENABLE. */ \ + CENABLE; \ + stw 3,16(1); /* store CENABLE return value (MASK). */ \ + UNDOCARGS_##args; /* restore syscall args. */ \ + DO_CALL (SYS_ify (syscall_name)); \ + mfcr 0; /* save CR/R3 around CDISABLE. */ \ + stw 3,8(1); \ + stw 0,12(1); \ + lwz 3,16(1); /* pass MASK to CDISABLE. */ \ + CDISABLE; \ + lwz 4,52(1); \ + lwz 0,12(1); /* restore CR/R3. */ \ + lwz 3,8(1); \ + mtlr 4; \ + mtcr 0; \ + addi 1,1,48; + +# define DOCARGS_0 +# define UNDOCARGS_0 + +# define DOCARGS_1 stw 3,20(1); DOCARGS_0 +# define UNDOCARGS_1 lwz 3,20(1); UNDOCARGS_0 + +# define DOCARGS_2 stw 4,24(1); DOCARGS_1 +# define UNDOCARGS_2 lwz 4,24(1); UNDOCARGS_1 + +# define DOCARGS_3 stw 5,28(1); DOCARGS_2 +# define UNDOCARGS_3 lwz 5,28(1); UNDOCARGS_2 + +# define DOCARGS_4 stw 6,32(1); DOCARGS_3 +# define UNDOCARGS_4 lwz 6,32(1); UNDOCARGS_3 + +# define DOCARGS_5 stw 7,36(1); DOCARGS_4 +# define UNDOCARGS_5 lwz 7,36(1); UNDOCARGS_4 + +# define DOCARGS_6 stw 8,40(1); DOCARGS_5 +# define UNDOCARGS_6 lwz 8,40(1); UNDOCARGS_5 + +# ifdef IS_IN_libpthread +# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel) +# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel) +# else +# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel) +# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel) +# endif + +# ifndef __ASSEMBLER__ +# define SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) +# else +# define SINGLE_THREAD_P \ + lwz 10,MULTIPLE_THREADS_OFFSET(2); \ + cmpwi 10,0 +# endif + +#elif !defined __ASSEMBLER__ + +/* This code should never be used but we define it anyhow. */ +# define SINGLE_THREAD_P (1) + +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h new file mode 100644 index 0000000..4a6cbf0 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h @@ -0,0 +1,102 @@ +/* Cancellable system call stubs. Linux/PowerPC64 version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <tls.h> +#ifndef __ASSEMBLER__ +# include <nptl/pthreadP.h> +#endif + +#if !defined NOT_IN_libc || defined IS_IN_libpthread + +# undef PSEUDO +# define PSEUDO(name, syscall_name, args) \ + .section ".text"; \ + ENTRY (name) \ + SINGLE_THREAD_P; \ + bne- .Lpseudo_cancel; \ + DO_CALL (SYS_ify (syscall_name)); \ + PSEUDO_RET; \ + .Lpseudo_cancel: \ + stdu 1,-128(1); \ + mflr 9; \ + std 9,128+16(1); \ + DOCARGS_##args; /* save syscall args around CENABLE. */ \ + CENABLE; \ + std 3,72(1); /* store CENABLE return value (MASK). */ \ + UNDOCARGS_##args; /* restore syscall args. */ \ + DO_CALL (SYS_ify (syscall_name)); \ + mfcr 0; /* save CR/R3 around CDISABLE. */ \ + std 3,64(1); \ + std 0,8(1); \ + ld 3,72(1); /* pass MASK to CDISABLE. */ \ + CDISABLE; \ + ld 9,128+16(1); \ + ld 0,8(1); /* restore CR/R3. */ \ + ld 3,64(1); \ + mtlr 9; \ + mtcr 0; \ + addi 1,1,128; + +# define DOCARGS_0 +# define UNDOCARGS_0 + +# define DOCARGS_1 std 3,80(1); DOCARGS_0 +# define UNDOCARGS_1 ld 3,80(1); UNDOCARGS_0 + +# define DOCARGS_2 std 4,88(1); DOCARGS_1 +# define UNDOCARGS_2 ld 4,88(1); UNDOCARGS_1 + +# define DOCARGS_3 std 5,96(1); DOCARGS_2 +# define UNDOCARGS_3 ld 5,96(1); UNDOCARGS_2 + +# define DOCARGS_4 std 6,104(1); DOCARGS_3 +# define UNDOCARGS_4 ld 6,104(1); UNDOCARGS_3 + +# define DOCARGS_5 std 7,112(1); DOCARGS_4 +# define UNDOCARGS_5 ld 7,112(1); UNDOCARGS_4 + +# define DOCARGS_6 std 8,120(1); DOCARGS_5 +# define UNDOCARGS_6 ld 8,120(1); UNDOCARGS_5 + +# ifdef IS_IN_libpthread +# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel) +# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel) +# else +# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel) +# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel) +# endif + +# ifndef __ASSEMBLER__ +# define SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, multiple_threads) \ + == 0, 1) +# else +# define SINGLE_THREAD_P \ + lwz 10,MULTIPLE_THREADS_OFFSET(13); \ + cmpdi 10,0 +# endif + +#elif !defined __ASSEMBLER__ + +/* This code should never be used but we define it anyhow. */ +# define SINGLE_THREAD_P (1) + +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S b/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S new file mode 100644 index 0000000..46e33c0 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S @@ -0,0 +1,35 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep-cancel.h> +#define _ERRNO_H 1 +#include <bits/errno.h> +#include <kernel-features.h> + +/* Clone the calling process, but without copying the whole address space. + The calling process is suspended until the new process exits or is + replaced by a call to `execve'. Return -1 for errors, 0 to the new process, + and the process ID of the new process to the old process. */ + +ENTRY (__vfork) + DO_CALL (SYS_ify (vfork)); + PSEUDO_RET + +PSEUDO_END (__vfork) + +weak_alias (__vfork, vfork) diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/pthread_once.c b/nptl/sysdeps/unix/sysv/linux/powerpc/pthread_once.c new file mode 100644 index 0000000..18029e9 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/pthread_once.c @@ -0,0 +1,99 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "pthreadP.h" +#include <lowlevellock.h> + + +unsigned long int __fork_generation attribute_hidden; + + +static void +clear_once_control (void *arg) +{ + pthread_once_t *once_control = (pthread_once_t *) arg; + + *once_control = 0; + lll_futex_wake (once_control, INT_MAX); +} + + +int +__pthread_once (pthread_once_t *once_control, void (*init_routine) (void)) +{ + for (;;) + { + int oldval; + int newval; + int tmp; + + /* Pseudo code: + newval = __fork_generation | 1; + oldval = *once_control; + if ((oldval & 2) == 0) + *once_control = newval; + Do this atomically. + */ + newval = __fork_generation | 1; + __asm __volatile ("1: lwarx %0,0,%3\n" + " andi. %1,%0,2\n" + " bne 2f\n" + " stwcx. %4,0,%3\n" + "2: isync" + : "=&r" (oldval), "=&r" (tmp), "=m" (*once_control) + : "r" (once_control), "r" (newval), "m" (*once_control) + : "cr0"); + + /* Check if the initializer has already been done. */ + if ((oldval & 2) != 0) + return 0; + + /* Check if another thread already runs the initializer. */ + if ((oldval & 1) == 0) + break; + + /* Check whether the initializer execution was interrupted by a fork. */ + if (oldval != newval) + break; + + /* Same generation, some other thread was faster. Wait. */ + lll_futex_wait (once_control, oldval); + } + + + /* This thread is the first here. Do the initialization. + Register a cleanup handler so that in case the thread gets + interrupted the initialization can be restarted. */ + pthread_cleanup_push (clear_once_control, once_control); + + init_routine (); + + pthread_cleanup_pop (0); + + + /* Add one to *once_control to take the bottom 2 bits from 01 to 10. */ + __lll_add (once_control, 1); + + /* Wake up all other threads. */ + lll_futex_wake (once_control, INT_MAX); + + return 0; +} +weak_alias (__pthread_once, pthread_once) +strong_alias (__pthread_once, __pthread_once_internal) diff --git a/nptl/sysdeps/unix/sysv/linux/sem_post.c b/nptl/sysdeps/unix/sysv/linux/sem_post.c new file mode 100644 index 0000000..77defc8 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sem_post.c @@ -0,0 +1,47 @@ +/* sem_post -- post to a POSIX semaphore. Generic futex-using version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <sysdep.h> +#include <lowlevellock.h> +#include <internaltypes.h> +#include <semaphore.h> + +#include <shlib-compat.h> + +int +__new_sem_post (sem_t *sem) +{ + int *futex = (int *) sem; + int err, nr; + + __asm __volatile (__lll_rel_instr ::: "memory"); + nr = __lll_add (futex, 1); + err = lll_futex_wake (futex, nr); + if (err == 0) + return 0; + __set_errno (-err); + return -1; +} +versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1); +#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1) +strong_alias (__new_sem_post, __old_sem_post) +compat_symbol (libpthread, __old_sem_post, sem_post, GLIBC_2_0); +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/sem_timedwait.c b/nptl/sysdeps/unix/sysv/linux/sem_timedwait.c new file mode 100644 index 0000000..e1b32f4 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sem_timedwait.c @@ -0,0 +1,87 @@ +/* sem_timedwait -- wait on a semaphore. Generic futex-using version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <sysdep.h> +#include <lowlevellock.h> +#include <internaltypes.h> +#include <semaphore.h> + +#include <shlib-compat.h> + + +int +sem_timedwait (sem_t *sem, const struct timespec *abstime) +{ + int *futex = (int *) sem; + int val; + int err; + + if (*futex > 0) + { + val = __lll_dec_if_positive (futex); + if (val > 0) + return 0; + } + + err = -EINVAL; + if (abstime->tv_nsec >= 1000000000) + goto error_return; + + do + { + struct timeval tv; + struct timespec rt; + int sec, nsec; + + /* Get the current time. */ + __gettimeofday (&tv, NULL); + + /* Compute relative timeout. */ + sec = abstime->tv_sec - tv.tv_sec; + nsec = abstime->tv_nsec - tv.tv_usec * 1000; + if (nsec < 0) + { + nsec += 1000000000; + --sec; + } + + /* Already timed out? */ + err = -ETIMEDOUT; + if (sec < 0) + goto error_return; + + /* Do wait. */ + rt.tv_sec = sec; + rt.tv_nsec = nsec; + err = lll_futex_timed_wait (futex, 0, &rt); + if (err != 0 && err != -EWOULDBLOCK) + goto error_return; + + val = __lll_dec_if_positive (futex); + } + while (val <= 0); + + return 0; + + error_return: + __set_errno (-err); + return -1; +} diff --git a/nptl/sysdeps/unix/sysv/linux/sem_trywait.c b/nptl/sysdeps/unix/sysv/linux/sem_trywait.c new file mode 100644 index 0000000..a7b60a1 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/sem_trywait.c @@ -0,0 +1,50 @@ +/* sem_trywait -- wait on a semaphore. Generic futex-using version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <sysdep.h> +#include <lowlevellock.h> +#include <internaltypes.h> +#include <semaphore.h> + +#include <shlib-compat.h> + + +int +__new_sem_trywait (sem_t *sem) +{ + int *futex = (int *) sem; + int val; + + if (*futex > 0) + { + val = __lll_dec_if_positive (futex); + if (val > 0) + return 0; + } + + __set_errno (EAGAIN); + return -1; +} +versioned_symbol (libpthread, __new_sem_trywait, sem_trywait, GLIBC_2_1); +#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1) +strong_alias (__new_sem_trywait, __old_sem_trywait) +compat_symbol (libpthread, __old_sem_trywait, sem_trywait, GLIBC_2_0); +#endif |